Research on the Treatment of the Yellow River Micro-Polluted Water in Shanxi by Ozone-Activated Carbon Process

Abstract

In this study, the micro-polluted water of a reservoir filled with Yellow River water in Shanxi was used as the raw water. The removals of chemical oxygen demand (CODMn), ammonia nitrogen, petroleum substances, and volatile phenol were investigated by ozone-activated carbon process. Results showed that ozone-activated carbon process had a good removal of the pollutants mentioned above. The optimum dosage of ozone for each pollutant was 2.0 mg/L, 2.5 mg/L, 3.0 mg/L, 3.0mg/L, with the corresponding removal efficiency of 59.36 %, 88.01%, 79.31%, and 88.16%, respectively. The treated water quality could meet the standards for Drinking Water Quality (GB5749-2006) in China.

Influence of Phragmites communis and Zizania aquatica on rhizosphere soil enzyme activity and bacterial community structure in a surface flow constructed wetland treating secondary domestic effluent in China

“…The problems of water pollution and shortage of freshwater resources are more prominent (Cheng et al, 2019). Although numerous studies have reported the methods and effect of wastewater purification in the Shanxi province of China (Tang et al, 2014;Du et al, 2015a, b), the application of constructed wetlands in sewage treatment in typical areas of Shanxi province and research of the "plant-soil-bacteria" system in the wetland purification are still in its initial stage.…”